If you’ve been married before or have children it’s perfectly acceptable to wear white. If you’ve been married before or have children you’re not supposed to wear a veil or have a train attached to your dress or carry orange blossoms.

(Must be a sign of purity or virginity thing). The second time around, your parents are not obligated to pay for anything. If you get along with your ex-husband and his family and it’s fine with your fiancé, then it’s acceptable to invite them to the wedding. (why you’d want to is another story)

Bride’s Second Marriage